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Below are listed the dyadic chords of 11-limit semisept temperament. The essentially just chords are typed as otonal, utonal, or ambitonal. Those requiring tempering by 540/539 are swetismic, and by 176/175 valinorsmic.

Semisept has MOS of size 5, 8, 13, 18, 31, 49 and 80. Some amount triadic and tetradic harmony shows itself by the 13-note MOS and much more with 18 notes. The swetismic tetrad with complexity 11 is worthy of particular note.

Triads

Number
Chord
Transversal
Type
1
0-2-9
1-12/7-7/5
swetismic
2
0-7-9
1-18/11-7/5
swetismic
3
0-2-11
1-12/7-6/5
utonal
4
0-9-11
1-7/5-6/5
otonal
5
0-2-12
1-12/7-11/7
otonal
6
0-6-12
1-5/4-11/7
valinorsmic
7
0-10-12
1-11/6-11/7
utonal
8
0-6-15
1-5/4-7/4
otonal
9
0-9-15
1-7/5-7/4
utonal
10
0-2-17
1-12/7-3/2
utonal
11
0-6-17
1-5/4-3/2
otonal
12
0-7-17
1-18/11-3/2
utonal
13
0-10-17
1-11/6-3/2
otonal
14
0-11-17
1-6/5-3/2
utonal
15
0-15-17
1-7/4-3/2
otonal
16
0-2-19
1-12/7-9/7
otonal
17
0-7-19
1-18/11-9/7
utonal
18
0-9-19
1-7/5-9/7
swetismic
19
0-10-19
1-11/6-9/7
swetismic
20
0-12-19
1-11/7-9/7
otonal
21
0-17-19
1-3/2-9/7
utonal
22
0-2-21
1-12/7-11/10
swetismic
23
0-6-21
1-5/4-11/10
valinorsmic
24
0-9-21
1-7/5-11/10
otonal
25
0-10-21
1-11/6-11/10
utonal
26
0-11-21
1-6/5-11/10
otonal
27
0-12-21
1-11/7-11/10
utonal
28
0-15-21
1-7/4-11/10
valinorsmic
29
0-19-21
1-9/7-11/10
swetismic
30
0-6-27
1-5/4-11/8
otonal
31
0-10-27
1-11/6-11/8
utonal
32
0-12-27
1-11/7-11/8
utonal
33
0-15-27
1-7/4-11/8
otonal
34
0-17-27
1-3/2-11/8
otonal
35
0-21-27
1-11/10-11/8
utonal
36
0-7-28
1-18/11-9/5
utonal
37
0-9-28
1-7/5-9/5
otonal
38
0-11-28
1-6/5-9/5
otonal
39
0-17-28
1-3/2-9/5
utonal
40
0-19-28
1-9/7-9/5
utonal
41
0-21-28
1-11/10-9/5
otonal
42
0-6-34
1-5/4-9/8
otonal
43
0-7-34
1-18/11-9/8
utonal
44
0-15-34
1-7/4-9/8
otonal
45
0-17-34
1-3/2-9/8
ambitonal
46
0-19-34
1-9/7-9/8
utonal
47
0-27-34
1-11/8-9/8
otonal
48
0-28-34
1-9/5-9/8
utonal

Tetrads

Number
Chord
Transversal
Type
1
0-2-9-11
1-12/7-7/5-6/5
swetismic
2
0-2-11-17
1-12/7-6/5-3/2
utonal
3
0-6-15-17
1-5/4-7/4-3/2
otonal
4
0-2-9-19
1-12/7-7/5-9/7
swetismic
5
0-7-9-19
1-18/11-7/5-9/7
swetismic
6
0-2-12-19
1-12/7-11/7-9/7
otonal
7
0-10-12-19
1-11/6-11/7-9/7
swetismic
8
0-2-17-19
1-12/7-3/2-9/7
ambitonal
9
0-7-17-19
1-18/11-3/2-9/7
utonal
10
0-10-17-19
1-11/6-3/2-9/7
swetismic
11
0-2-9-21
1-12/7-7/5-11/10
swetismic
12
0-2-11-21
1-12/7-6/5-11/10
swetismic
13
0-9-11-21
1-7/5-6/5-11/10
otonal
14
0-2-12-21
1-12/7-11/7-11/10
swetismic
15
0-6-12-21
1-5/4-11/7-11/10
valinorsmic
16
0-10-12-21
1-11/6-11/7-11/10
utonal
17
0-6-15-21
1-5/4-7/4-11/10
valinorsmic
18
0-9-15-21
1-7/5-7/4-11/10
valinorsmic
19
0-2-19-21
1-12/7-9/7-11/10
swetismic
20
0-9-19-21
1-7/5-9/7-11/10
swetismic
21
0-10-19-21
1-11/6-9/7-11/10
swetismic
22
0-12-19-21
1-11/7-9/7-11/10
swetismic
23
0-6-12-27
1-5/4-11/7-11/8
valinorsmic
24
0-10-12-27
1-11/6-11/7-11/8
utonal
25
0-6-15-27
1-5/4-7/4-11/8
otonal
26
0-6-17-27
1-5/4-3/2-11/8
otonal
27
0-10-17-27
1-11/6-3/2-11/8
ambitonal
28
0-15-17-27
1-7/4-3/2-11/8
otonal
29
0-6-21-27
1-5/4-11/10-11/8
valinorsmic
30
0-10-21-27
1-11/6-11/10-11/8
utonal
31
0-12-21-27
1-11/7-11/10-11/8
utonal
32
0-15-21-27
1-7/4-11/10-11/8
valinorsmic
33
0-7-9-28
1-18/11-7/5-9/5
swetismic
34
0-9-11-28
1-7/5-6/5-9/5
otonal
35
0-7-17-28
1-18/11-3/2-9/5
utonal
36
0-11-17-28
1-6/5-3/2-9/5
ambitonal
37
0-7-19-28
1-18/11-9/7-9/5
utonal
38
0-9-19-28
1-7/5-9/7-9/5
swetismic
39
0-17-19-28
1-3/2-9/7-9/5
utonal
40
0-9-21-28
1-7/5-11/10-9/5
otonal
41
0-11-21-28
1-6/5-11/10-9/5
otonal
42
0-19-21-28
1-9/7-11/10-9/5
swetismic
43
0-6-15-34
1-5/4-7/4-9/8
otonal
44
0-6-17-34
1-5/4-3/2-9/8
otonal
45
0-7-17-34
1-18/11-3/2-9/8
utonal
46
0-15-17-34
1-7/4-3/2-9/8
otonal
47
0-7-19-34
1-18/11-9/7-9/8
utonal
48
0-17-19-34
1-3/2-9/7-9/8
utonal
49
0-6-27-34
1-5/4-11/8-9/8
otonal
50
0-15-27-34
1-7/4-11/8-9/8
otonal
51
0-17-27-34
1-3/2-11/8-9/8
otonal
52
0-7-28-34
1-18/11-9/5-9/8
utonal
53
0-17-28-34
1-3/2-9/5-9/8
utonal
54
0-19-28-34
1-9/7-9/5-9/8
utonal

Pentads

Number
Chord
Transversal
Type
1
0-2-9-11-21
1-12/7-7/5-6/5-11/10
swetismic
2
0-2-9-19-21
1-12/7-7/5-9/7-11/10
swetismic
3
0-2-12-19-21
1-12/7-11/7-9/7-11/10
swetismic
4
0-10-12-19-21
1-11/6-11/7-9/7-11/10
swetismic
5
0-6-15-17-27
1-5/4-7/4-3/2-11/8
otonal
6
0-6-12-21-27
1-5/4-11/7-11/10-11/8
valinorsmic
7
0-10-12-21-27
1-11/6-11/7-11/10-11/8
utonal
8
0-6-15-21-27
1-5/4-7/4-11/10-11/8
valinorsmic
9
0-7-9-19-28
1-18/11-7/5-9/7-9/5
swetismic
10
0-7-17-19-28
1-18/11-3/2-9/7-9/5
utonal
11
0-9-11-21-28
1-7/5-6/5-11/10-9/5
otonal
12
0-9-19-21-28
1-7/5-9/7-11/10-9/5
swetismic
13
0-6-15-17-34
1-5/4-7/4-3/2-9/8
otonal
14
0-7-17-19-34
1-18/11-3/2-9/7-9/8
utonal
15
0-6-15-27-34
1-5/4-7/4-11/8-9/8
otonal
16
0-6-17-27-34
1-5/4-3/2-11/8-9/8
otonal
17
0-15-17-27-34
1-7/4-3/2-11/8-9/8
otonal
18
0-7-17-28-34
1-18/11-3/2-9/5-9/8
utonal
19
0-7-19-28-34
1-18/11-9/7-9/5-9/8
utonal
20
0-17-19-28-34
1-3/2-9/7-9/5-9/8
utonal

Hexads

Number
Chord
Transversal
Type
1
0-6-15-17-27-34
1-5/4-7/4-3/2-11/8-9/8
otonal
2
0-7-17-19-28-34
1-18/11-3/2-9/7-9/5-9/8
utonal